Draft-equalizer



(No Model.)

I. N. WOODLE.

, DRAFT EQUALIZER. No. 392,530. Patented Nov. 6, 1888.

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UNITED STATES PATENT ()rrrcn.

ISAAC N. IVOODLE, OF ALBANY, OREGON.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 392,530, dated November6, 1888.

Application filed July 19, 1888. Serial No. 280,381. (No model.)

To all whom it may concern:

Be it known that I, IsAAo N. WooDLn, of the city of Albany, in thecounty of Linn and State of Oregon,have invented certain new and usefulImprovements in Draft-Equalizers; and .11 do hereby declare that thefollowingis a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form part of this specification.

Figure 1 is a plan view of my improved draft-equalizer. Figs. 2 and 3are details.

This invention is an improvement in draft' equalizers; and it has forits objects to both equalize the draft and to transfer strain from theends of the doubletree to the tongue; and it consists in the novelconstruction and arrangement of parts hereinafter described, illustratedin the drawings, and particularly specified in the claims heretoappended.

In the drawings, A represents the tongue of a vehicle, braced to axle Aby rods a a, as shown; B, the doubletree, pivoted thereon, as usual; andO O, the singletrees, pivotally attached to the ends of the doubletreeby bolts D D. In rear of the pivot of doubletree B is secured to thetongue a loop, E, and F is a horizontal friction-roller secured withinsaid loop at the side next the doubletree.

G is a metal bar bent laterally on the arc of a circle, as shown, andplaying longitudinally through loop E in the rear of roller F, itsconcave edge bearing against said roller.

9 g are shoulders or enlargements formed at the ends of bar G, and limitthe movement of said bar through the loop.

H H are slightly curved rods connected to the ends of bar G andextending forward to the ends of the doubletree, Where they arehorizontally bifurcated. The arms h h of the bifurcated ends embrace thedouble and single trees, and are perforated for the passage of theretaining-bolts D, as shown.

It will be seen that strain on one end of the doubletree is transferreddirectly through rods H and bar G to the other end, thereby equal izingthe draft, the barGmoving easily against the roller a; and, further,that the bifurcated ends of the rods H, receiving bolts D, transfer agreat part of the draftstrain direct to the rods Hand bar G, and thelatter shift the strain upon the fastenings of strap E to the tongue.Shoulders g of bar G serve as stops to prevent the doubletree and rodsbeing shifted too far. Rods H may be made integral with bars G, ifdesired.

Having described myinvention, I claim- 1. In a draft-equalizer, thecombination of the doubletree and singletrees with the movable curvedbar G, playing through a strap, E, on the shaft, and havingstop-shoulders on its ends, and rods H H, connected, respectively, tothe ends of bar G and the trees, all

constructed and arranged substantially as specified.

2. The combination of the tongue and donbletree with the strap E, rollerF, the curved and shouldered bar G, playing through said strap, bearingagainst said roller, and the rods connecting the ends of said bar withthe doubletree, all constructed and arranged substantially as and forthe purpose described.

3. The combination of the tongue, doubletree pivoted thereon, and thesingletrees, with the draft equalizing devices, comprising a curved andshouldered bar, G, strap E, roller F, and rods H H, attached to bar Gand having bifurcated ends it h, embracing the double tree andsingletrees, and connected thereto by bolts D, substantially as and forthe purpose described.

In testimony thatI claim the foregoing as my own I affix my signature inpresence of wit nesses.

I. N. VVOODLE.

Witnesses:

L. H. MoN'rANYE, GEO. W. GRAY, G. B. MONTANYE.

